Introduction and Warning:
Asteroid OS is a Free Open Source alternative operating system for smartwatches. It utilizes libhybris to ensure maximum compatibility with the watch. The OS team is currently looking for active contributors to make it grow (more info at the project's webpage: http://asteroidos.org/). The OS is NOT based on Android wear and is currently in an Alpha Phase, has limited functions, applications and customizability so flash at your own risk. The current build is mostly meant for developers rather than end-users, so these images in no way reflect the finished Asteroid OS. I take no responsibility for what happens by the use of this software. By using the method bellow you don't flash Asteroid but rather run it side by side with Android wear. Essentially you place the OS file inside the watch and fastboot into it. This way Android Wear stays installed and you can test Asteroid. Asteroid at its current phase is not meant as a daily OS as it has bugs and issues, one of them being that the bluetooth doesn't work (so you can't pair it with your phone). I simply made a build of the OS, credit goes to the creator and the contributors, I can only provide you with builds, installation instructions and answers on a few questions, nothing more.
YouTube Video: https://www.youtube.com/watch?v=b_GJiQYTAIk
Photos and Videos can be found in the project's twitter account (mentioned bellow).
Official prebuilt Asteroid OS image: http://asteroidos.org/install/
Outdated Personal Build of mine (lacks newer build features):
1. Make sure you have an ADB installation (Minimal adb and fastboot should do) and your watches' bootloader is unlocked and debugging is enabled from the settings.
2. Download the two files in the download section and place them in the same folder and connect the watch to the computer
3. Open up the command prompt (cmd) and navigate to that folder
4. Issue these commands:
adb push asteroid-image-dory.ext2 /sdcard/linux/rootfs.ext2
adb reboot bootloader
fastboot boot zImage-dtb-dory.fastboot
5. The watch will reboot into Asteroid OS. Every time you want to boot into asteroid you have to issue the last two commands or else you will boot into android wear normally.
Just open up cmd, connect the watch to the computer and issue this command: adb shell rm "/sdcard/linux/rootfs.ext2"
kido - Creator of the OS
Everyone on the #asteroid IRC
Rest of Team Pear Crew
Twitter: @ asteroidOS